Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...